The longer I roamed around “This Town,” the more I thought Leibovich should have borrowed Newsweek’s memorable post-Sept. 11, 2001, cover line: “Why They Hate Us.” His tour through Washington only feeds the worst suspicions anyone can have about the place — a land driven by insecurity, hypocrisy and cable hits, where friendships are transactional, blind-copying is rampant and acts of public service appear largely accidental.

Only two things keep you turning pages between gulps of Pepto: First, in Leibovich’s hands, this state of affairs is not just depressing, it’s also kind of funny. Second, you want to know whether the author thinks anyone in Washington — anyone at all? — is worthy of redemption.